1. **State the problem:** We need to find the median number of math teachers from the given data: River High (4), Thompson High (3), Westside High (6), Moore High (5), Hillview High (8). 2. **Recall the median definition:** The median is the middle value in a list of numbers sorted in ascending order. If the list has an odd number of values, the median is the middle one. If even, it is the average of the two middle values. 3. **Sort the numbers:** The numbers of math teachers are 4, 3, 6, 5, 8. Sorted ascending: $$3, 4, 5, 6, 8$$ 4. **Find the middle value:** Since there are 5 numbers (odd count), the median is the 3rd number in the sorted list. 5. **Identify the median:** The 3rd number is 5. **Final answer:** The median number of math teachers is **5**.